XFX GTR RX480 8gb "crashing"

[jonasip04]

Specs:
MSI B350 Tomahawk
AMD Ryzen 7 1700
XFX Radeon 480 8GB
2x8 gb Cosair Vengance ddr4 3200MHz

Problem: Hey i have this problem where i cant play PUBG Fortnite og CSGO with out my pc "crash" or my screens go on lose signal and go on standby mode.

Thanks for you time and if you find a way to fix it

 

[Psycho349]

What PSU do you have and have you ever been able to play normally without problems?

 

[jonasip04]

I have a cossair rm 550 gold. And i have never realy could play normal. Only in csgo it just came here 2 weeks ago

 

[jonasip04]

What PSU do you have and have you ever been able to play normally without problems?

I have a cossair rm 550 gold. And i have never realy could play normal. Only in csgo it just came here 2 weeks ago

 

[Psycho349]

After those pc crashes do you get any bluescreen or after rebooting system do you get any message from windows?

 

[jonasip04]

After those pc crashes do you get any bluescreen or after rebooting system do you get any message from windows?

No i dont when it "crashes" i have to turn off and on the psu els my pc wont turn on/Respond